About: http://webisa.webdatacommons.org/220061207

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Sri Lanka, nicknamed the Gem Island, has been an important source of sapphires, rubies, and other gems for more than 2,000 years.
http://www.w3.org/ns/prov#wasQuotedFrom	si.edu